@article{JGG_2003_7_1_JGG_2003_7_1_a8,
     author = {C. P�tz and F. Schmitt},
     title = {Introduction to {Computer} {Aided} {Design} -- {Concept} of a {Didactically} {Founded} {Course}},
     journal = {Journal for geometry and graphics},
     pages = {111--12},
     publisher = {mathdoc},
     volume = {7},
     number = {1},
     year = {2003},
     url = {http://geodesic.mathdoc.fr/item/JGG_2003_7_1_JGG_2003_7_1_a8/}
}